Becker Indianapolis 7920 Operating Manual page 104

Enter the correct tyre size using the right rotary control and confirm the
entry by pressing for more than 2 seconds.
The letter "R" cannot be entered. 3 numbers must be entered be-
fore and after the slashes. Insert a "0" before any missing num-
bers.
Example:
Specification in vehicle registration papers: 185/55R15 81T
Input into unit: 185/055/015
Then select between NEW TYRE TREAD
to specify approximately the tread depth by turning the right rotary
control .
Press the right rotary control
The previously entered data is displayed once more. If the data entered
is correct, press the right rotary control
If correction is necessary, select MODIFY by turning the right rotary
control and press to confirm. The values can then be re-entered.
After confirming the tyre data or the previously confirmed point
, the adjacent display appears.
SELF-CALIBRATION
After a short time, the unit switches to the main navigation menu or the
calibration journey is requested.
The unit is now in calibration status 2. Absolute precision is,
however, only achieved as of calibration status 3.
and USED TYRE TREAD
to confirm the selection.
.
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Installation Guide
213